Door-bell



(No Model.) v

13. S BLOOMFIELD, J1.

DOOR BELL.

No. 337,657. Patented Mar. 9, 1886.,

UivrrEn STATES PATENT QEEIQE.

ELLIS S. BLOOMFIELD, JR, OF JERSEY CITY, NEW JERSEY.

DOOR- BELL.

EPECIPICATION forming part of Letters Patent No. 337,657, dated March 9.1886.

Application filed August 5, 1885. Serial No. 173,582. (No model.)

To aZZ whom it may concern:

Be it known that I, ELLIs S. BLOOMFIELD, Jr., a citizen of the UnitedStates, and a resident of Jersey City, in the county of Hudson and Stateof New Jersey, have invented a new and useful Improvement in Gong-Bells,of which the following is a specification.

My invention relatesto an improvement in that class of gong-bells inwhich the hammer and arm are made rigid, and the elasticity necessary tomake the stroke and recover itself, so as to allow the proper soundingof the bell, is given to it by means of an intermediate spring.

The object of my invention is to simplify and cheapen the construction,and afford facilities for working the mechanism in different ways, sothat the bell can be used in any position that may be required; and itconsists, first, in hinging both the hammer'arm and the hammer-lever onthe same pivot or fulcrum and connecting them together by a spring,which spring is attached to the trip on the lever and answers the doublepurpose of furnishing the hammer with the necessary elasticity to makethe stroke properly, and of returning the trip to position after beingdisplaced by the tripping-lever in returning for a repetition of thestroke; second, the introduction of an intermediate lever, to operateupon an arm of the tripping-lever for convenience in operating the bellin other positions.

Figure 1 is a front view of the base-plate and striking mechanism; Fig.2, a side view in section, showing the intermediate lever and manner ofoperating it; Fig. 3, a reverse View of Fig. 2; Fig. 4, a front view,also of the baseplate showing position of the parts at the moment oftripping the hammer; Fig. 5, a rear view of the hammer-arm,hammer-lever, and the trip.

Similar letters refer to similar parts throughout the several views.

The hammer-arm'B and the hammer-lever F are both secured by and workupon the same fulcrum b on the base-plate G, Fig. 1, and are joinedtogether by the spring g, which is attached at one end to a spur on thehammer-arm at b, while its other end is secured to the trip E, attachedto the hammer-lever E. On the upper side of the hammer-lever is formed astop, against which a projection on the hammer-arm is held by the springg, and is thereby made to move in connection with it.

C is the tripping-lever, pivoted to the plate at n, and having an arm.a, extended across an opening in the plate at n, and also into andbeyond the lever D. Its position is more clearly shown in Fig. 2.

' D is a lever pivoted to a lug at Z on the plate G, and moves againstthe arm a of the tripping-lever, forcing it inward.

In Fig. 5 the under side of the hammerlever F is shown, to which thetrip E is attached by the pin b, and on which it moves freely. One endof the spring 9 is secured to the trip atf, while the other end isattached to the hammer-armat b and the tension of the spring 9 keeps thetrip E against the stop It on the hammer-lever and in position to becaught by the tripping-lever. The short arm h of the hammer-lever comesagainst the stop ton the plate, Fig. 1, and checks it, when operated bythe spring B. An opening, u, in the plate G allows a lever, P, to bepassed through from the outside to hit upon the arm 0" of thetripping-lever.

The movement of the tripping-lever against the trip causes thehammer-lever to move outward, while at the same time the hammerarm,being attached to it by the spring, is drawn after it and given aninward motion away from the gong. The moment the hammer-lever escapes itis drawn back by the action of the spring R, carrying the hammer with ituntil it comes against the stop ton the plate, while the momentum giventhe hammer carries it on farther and against the gong to make thestroke. The springg yields sufficiently to allow it to do this, butinstantly recovers and retains it in its normal position. The trip willbe pushed back out of the way by the tripping-lever in returning for thestroke, but is thrown out again by the spring g, ready for anotheroperation. This arrangement of the hammer-arm and the trip connected bythe springg does away with a separate spring for each, as they areusually constructed, and is a saving of labor and expense. The lever D,working against the arm of the tripping-lever, affords facilities foroperating the mechanism in different positions, as will be seen byreference to the drawings, as at a 2. The combination as above, togetherwith 15 and a", in the direction of the arrows. the tripping-lever foractuating the same and I am aware that gong-hells have been 0011- theintermediate lever, D, pivoted to a lug on strnctecl with a rigidhammer-arm operated the plate and working against; an arm of the 5 by anintermediate sprin I therefore do not tripping-lever, for convenience inoperating claim such a combinaLion. broadly; but the bell in certainpositions, as shown and (1e 20 What I do claim, and desire to secure byscribed. Letters Patent, is-

1. In a gong-bell, the combination of the ELLIS S. BLOOMFIELD, JR. 10rigid hammerarm and the hammer lever working upon the same fulcrum andconnected Witnesses: by means of the spring g and the trip E, sub-ALBERT FLAGLER, stantially as described, and for the purpose JOSEPH C.PIERSON, Jr. set forth.

